AjaxTestImageEffect.php in Drupal 8
File
core/modules/image/tests/modules/image_module_test/src/Plugin/ImageEffect/AjaxTestImageEffect.php
View source
<?php
namespace Drupal\image_module_test\Plugin\ImageEffect;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Image\ImageInterface;
use Drupal\image\ConfigurableImageEffectBase;
class AjaxTestImageEffect extends ConfigurableImageEffectBase {
public function defaultConfiguration() {
return [
'test_parameter' => 0,
];
}
public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
$form['test_parameter'] = [
'#type' => 'number',
'#title' => t('Test parameter'),
'#default_value' => $this->configuration['test_parameter'],
'#min' => 0,
];
$form['ajax_refresh'] = [
'#type' => 'button',
'#value' => $this
->t('Ajax refresh'),
'#ajax' => [
'callback' => [
$this,
'ajaxCallback',
],
],
];
$form['ajax_value'] = [
'#id' => 'ajax-value',
'#type' => 'item',
'#title' => $this
->t('Ajax value'),
'#markup' => 'bar',
];
return $form;
}
public function ajaxCallback($form, FormStateInterface $form_state) {
$item = [
'#type' => 'item',
'#title' => $this
->t('Ajax value'),
'#markup' => microtime(),
];
$response = new AjaxResponse();
$response
->addCommand(new HtmlCommand('#ajax-value', $item));
return $response;
}
public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
parent::submitConfigurationForm($form, $form_state);
$this->configuration['test_parameter'] = $form_state
->getValue('test_parameter');
}
public function applyEffect(ImageInterface $image) {
return TRUE;
}
}